Explanation:
Economic sustainability consumption and development seeks to "get more and improve with much less," by minimizing resource usage, depletion and emissions although growing the standard of living, to maximize net positive externalizes from commercial development and economical benefit.
The correct answer in the space provided is state. He is likely studying the state of consciousness, it is because the state of consciousness covers the awareness of a person that occurs in his or her daily life. An example of it is when a person is walking, dreaming, eating in which occurs in their everyday life.